From Massoud Hassani & DesignGuide.tv, a wind-blown, wooden, bamboo-spiked ball, based on homemade childhood toys, that decommissions land mines by blowing them up, and maps its path along the way.

The ball loses a spike or two with each detonation. On-board GPS, reporting to a web site, is used to chart a safe course. As a child in Afghanistan, where there are literally millions of landmines, Hassani made similar toys that did at times wind up in minefields, inspiring this Mine Sweeper.